Re:Several vulnerabilities have been discovered in the Linux...
by zahlman on Friday October 02, 2026 @05:49AM
(#49931679)
I checked out the last (highest-numbered) one just as a quick sanity check:
> In the Linux kernel, the following vulnerability has been resolved:
> usb: typec: ucsi: unregister debugfs entries on teardown
> ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy().
> Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log:
> debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi'
> Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.
I'm going to need someone to explain how that could possibly become a "vulnerability".
> In the Linux kernel, the following vulnerability has been resolved:
> usb: typec: ucsi: unregister debugfs entries on teardown
> ucsi_register() creates per-instance debugfs entries, but ucsi_unregister() keeps them around until ucsi_destroy().
> Drivers like ucsi_glink that unregister/register the same UCSI instance across remoteproc restart then try to create an already existing debugfs directory and log:
> debugfs: 'pmic_glink.ucsi.0' already exists in 'ucsi'
> Unregister debugfs entries as part of ucsi_unregister(), and clear ucsi->debugfs after freeing it so repeated unregister paths remain safe.
I'm going to need someone to explain how that could possibly become a "vulnerability".